CN101052037B - Conversation management control method of IP bearing net - Google Patents
Conversation management control method of IP bearing net Download PDFInfo
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Abstract
The method comprises: the first bearer controller sends a detection message to the second bearer controller in order to detect the state of bearer network between two bearer controllers; the second bearer controller reports the received detection message to the service controller; according to the detection message, the service controller makes session control. By invention, the service controller can get the state of bearer network in each time interval, and according to the information about the state of bearer network, takes relevant operations.
Description
Technical field
The present invention relates to communication field, relate to a kind of conversation management control method of IP bearer network especially.
Background technology
On the bearer network based on IP, carrying is during miscellaneous service, and conversation management control is unusual important techniques.When bearer network transships, must make restriction to the admittance of new session, otherwise the adding of new session will impact to the communication quality of all sessions in all bearer networks.
There has been multiple IP conversation management control technology at present, more common RSVP (Resource Reservation Protocol is called for short RSVP) technology and the Softswitch technology of mainly containing.
For the RSVP technology, this technology is before new session is set up, and makes resource reservation request to routing device, is the session reserved resource of having set up, if the access of session is agreed in the resource reservation success again, sets up session; Otherwise refusal session.
This RSVP technology by at first being the resource reservation resource set up, has only bearer network resource behind the reserved resource to satisfy the needs of new session, just inserts new session, otherwise the access of refusal new session.When link failure does not take place midway in bearer network, the perhaps fault of Fa Shenging, when but remaining bearer network resource still can satisfy the current business needs after the fault, use this RSVP technology, really can on the basis of the quality of service of the session that guarantees to have set up, carry out accurately and whether insert the new session decision-making.But if in the bearer network link failure takes place midway, certain section link portions or interrupt fully for example, and this fault has caused the current resource of bearer network sharply to reduce, cause a resource shrinkage of current bearer network still can not satisfy the demand of the business of the session of having set up to original reserved resource, so under this kind situation, the RSVP technology can not be done any control to this bearer network state variation, cause all quality of having set up session because being affected of this link failure, all quality of services descend.Because this reserved resource protocol technology is made corresponding conversation management control owing to can not tackle the fault of bearer network, when bearer network breaks down, can not effectively ensure the session service quality of having set up, and has limitation greatly in actual applications.
For Softswitch technology, mainly be to realize by RTCP Real-time Transport Control Protocol (Real-time ControlProtocol is called for short RTCP).The media gateway of transmitting terminal (Media Gateway, be called for short MGW) according to RTP (Real-time Protocol, be called for short RTP) the transmission business data packet, the MGW of professional receiving terminal receives this business data packet, and according to received business data packet, obtain packet through the quality of the bearer network in path, wherein this bearer network quality specifically wraps in shake, the delay parameter of bearer network in transmitting by business datum and represents.The carrying network address quality information feedback that the MGW of professional receiving terminal will be obtained by received business data packet is to the MGW of professional transmitting terminal, the MGW of professional transmitting terminal is with the bearer network quality information that is fed back, report and be attached thereto Media Gateway Controller (the MediaGateway Controller that connects, be called for short MGC), according to the IP bearer network quality between two MGW, carry out corresponding conversation management control by MGC.If the MGC of professional transmitting terminal receives new session and inserts request, MGC judges whether to insert new session according to the current bearer network quality condition that MGW reports.If the permission of current bearer network quality then accepts request, set up new session; Otherwise refuse this new session.If during bearer network generation link failure, the shake of the packet that is transmitted between two MGW clearly or time delay increase, the MGW of receiving terminal is according to this information, detect the quality decline situation of bearer network, and report to MGC, according to this reported result, make corresponding conversation management control decision-making by MGC, this decision-making can be operations such as shunting or dismounting partial session, guarantees the quality of service of residue session.
As seen, use Softswitch technology, learn the quality information of current bearer network according to the transmission quality of the business information bag that receives by the Media Gateway Controller of receiving terminal, and the bearer network quality information of being known returned media gateway to information transmitting terminal, the media gateway of information transmitting terminal is given this bearer network information uploading the Media Gateway Controller that is attached thereto knot, Media Gateway Controller is carried out corresponding conversation management control strategy according to this bearer network information of uploading.When the quality of service of bearer network session takes place to descend, can find current quality of the conversation decline situation by detecting, and take corresponding conversation management control control.With respect to the RSVP technology, Softswitch technology can be tackled link failure to a certain extent, makes corresponding conversation management control strategy, relatively more realistic application requirements.
But, when current bearer network bandwidth is still sufficient, existence owing to situations such as spikes in the bearer network, cause the propagation delay time of business data packet or become big in the shake short time, MGW may cause MGC to take conversation management control strategies such as wrong refusal new session access or dismounting partial session according to this wrong quality report with this situation erroneous judgement for quality descends; Again and, because the inherent characteristics of IP bearer network as long as service traffics surpass the flow of design, is any quality can not occur to descend.Therefore have only the traffic carrying capacity of bearer network to surpass the flow that designs, after current all session service quality of having set up have descended, MGW just can detect this quality of service decline situation, therefore, MGC can only be in bearer network after the decline of session service quality, could carry out corresponding conversation management control strategy, the user's result of use that causes all to set up session is experienced variation, and the effect of CAC is not fine.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of conversation management control method of IP bearer network, adopt the inventive method, not only can accurately control session inserts, can also work as bearer network when breaking down, in time carry out effective conversation management control strategy, ensure the quality of service of bearer network effectively, improve user's use experience.
For solving the problems of the technologies described above, the objective of the invention is to be achieved through the following technical solutions:
A kind of conversation management control method of IP bearer network may further comprise the steps:
A, first bearer controller send probe messages to second bearer controller; With described probe messages from described first bearer controller arrive for the first time another bearer network equipment the bearer network state recording of link section of process described probe messages;
B, second bearer controller upload to the probe messages that is received and are attached thereto the service controller that connects, and the bearer network state that described service controller carries according to described probe messages carries out conversation management control.
As can be seen from the above technical solutions, compared with prior art, the present invention is because the detection mechanism that has adopted bearer controller initiatively regularly to survey, and the bearer network state that detection mechanism of the present invention is obtained is except the current time delay of bearer network, outside the dither state, can also obtain for the most important bearer network state parameter of reflection bearer network state: bandwidth parameter, therefore adopt the method for the invention, SC not only can be timely, carry out the session Access Control Policy of request that new session is inserted exactly, can also work as bearer network when breaking down, the bearer network state that the probe messages that reports by timing writes down, in time find fault, fault is in time made corresponding conversation management control strategy, before quality of service descends, in time remove partial session, guarantee the quality of service of residue session, improved user's use experience.
Further, in the probe messages transmission course, according to through the bearer network state of link, bearer network information is upgraded, make the probe messages record be reported to service controller the bearer network state in the path the poorest bearer network state, when receiving session access request, service controller can all can satisfy on the basis of the service needed that has inserted session by all links in guaranteeing bearer network, carries out corresponding session access strategy more accurately.
Further, SC predicts the bearer network state according to the probe messages that regularly reports, obtain prediction address, and, predict quality of service and whether will descend according to prediction address, further guaranteed before business descends,, carry out timely, active session management control according to prediction address.
In addition, the method for the invention does not need existing bearer network system is done the change of any hardware aspect, just can improve the conversation management control function to bearer network greatly.
Description of drawings
Fig. 1 is the system schematic of IP bearer network;
Fig. 2 is the main flow schematic diagram of the method for the invention;
Fig. 3 is transmission, the renewal process schematic diagram of probe messages in path 1 shown in Figure 1;
Fig. 4 is transmission, the renewal process schematic diagram of probe messages in path 2 shown in Figure 1;
Fig. 5 carries out the storage format schematic diagram of each updated stored mode to the probe messages in each path of being received for the SC2 in the system shown in Figure 1;
Fig. 6 carries out the regularly storage format schematic diagram of updated stored mode for the SC2 in the system shown in Figure 1 to the probe messages in each path of being received.
Embodiment
Core concept of the present invention is: first bearer controller sends probe messages to second bearer controller, to survey the bearer network state between two bearer controllers; Second bearer controller is with the probe messages that is received, upload to and be attached thereto the service controller that connects, service controller receives this probe messages, regularly know the bearer network state in each path of current bearer network, and according to the bearer network state of being known, new session is inserted request or link failure, carry out corresponding conversation management control strategy more accurately, timely.
Further, bearer controller send survey report after, with probe messages from first bearer controller arrive for the first time another bearing control equipment the bearer network state recording of bearer network link section of process probe messages; In follow-up probe messages transport process, with the bearer network state that writes down in the probe messages and probe messages the bearer network state of bearer network link section of process compare, if the bearer network state of this link section is not better than the bearer network state of probe messages record, then revise the bearer network state information of probe messages record, specifically be that each parameter with the bearer network state of probe messages record compares respectively with the corresponding parameter of this link section respectively, if the bearer network state of the parameter reflection of probe messages record is better than or is equal to the bearer network state that relevant parameter reflected of this link section, then the parameter information in the probe messages is revised as the relevant parameter state information of this link section.Make be sent at last the bearer network state that writes down in the probe messages of service controller for this probe messages through the poorest information in path, therefore all conversation management control of doing according to this probe messages of service controller can guarantee that all links in bearer network path have quality of service preferably.
Further, service controller is stored received probe messages, storage mode can be according to every probe messages institute through the path, IP territory for every path allocation correspondence, make the respectively corresponding different IP territory of probe messages in different paths, like this service controller can according to the IP territory realization of correspondence to the storage of the bearer network state information in each path, search and upgrade.
Further, service controller can be according to actual needs, in a period of time, the bearer network state of the probe messages of each the path correspondence that is received is stored respectively, and each path bearer network state of being stored is carried out statistical analysis, obtain the bearer network state variation prediction address in each path, and according to this prediction address, predicting the bearer network state quality will descend the time, SC can carry out shunting in advance or remove the conversation management control strategy of partial session, more effectively tackle the generation of bearer network faults, ensure the quality of service of the session of having set up to greatest extent.
Bearer network state parameter described in the present invention specifically is any relevant parameter that can reflect bearer network state, quality, such as, the parameters such as remaining bandwidth, total bandwidth, shake or time delay that can choose bearer network are as the bearer network state parameter, and concrete choosing according to service needed decided.
In order to allow those skilled in the art better understand the method for the invention, the bright technical scheme of we is described in further detail below in conjunction with accompanying drawing and specific embodiment:
Fig. 1 is the system schematic of IP bearer network, as shown, as seen native system figure is that view of function from each building block of system is described system, this system comprises service controller (ServiceController, SC), bearer controller (Bearer Controller, BC) and routing device (RouterDevice, RD), wherein SC is connected with one or more BC, SC carries out conversation management control to BC, be connected by one or more RD between the BC, RD is used for the information that routing forwarding BC is sent.In each concrete different IP bearer network systems, according to the corresponding relation of the function of the concrete function of each component devices in this concrete bearer network system and each building block in the native system, each building block in the native system can be corresponded to the concrete equipment of actual bearer net system.For example, if in the R4 soft exchanging network, described SC is exactly MSC Server wherein, and BC is exactly MGW wherein, and RD is exactly MGW wherein, and RD is exactly Router or LAN Switch.What deserves to be explained is: present embodiment is illustrated the concrete enforcement of this method with the R4 soft exchanging network, and the effect that obtains, but technical solution of the present invention is not limited to the R4 soft exchanging network, and technical solution of the present invention goes for all IP-based bearer network communication.Such as, technical solution of the present invention can be applied to next generation network (Next GenerationNetwork equally, be called for short NGN), in the NGN system, SC of the present invention is exactly the Server among the NGN, BC is exactly MGW wherein, and RD is exactly MGW wherein, and RD is exactly Router or LAN Switch.
Be illustrated in figure 2 as the main flow schematic diagram of the method for the invention.As shown: this method may further comprise the steps:
Step S201: first bearer controller sends probe messages to second bearer controller, to survey the bearer network state between two bearer controllers.
The periodic timed sending of the one BC sends probe messages to the 2nd BC, to survey the bearer network state between this two BC.Wherein should regularly trigger control, can be set directly on the BC, trigger, send probe messages by the BC self-timing; Can also be arranged on the SC, according to the timed sending cycle, regularly trigger and be attached thereto each BC that connects by SC, after BC receives triggering, the transmission detection information of timing cycle.The set cycle specifically can be provided with according to the actual requirement of system.
Wherein the bearer network state specifically can comprise the parameter states relevant with the bearer network quality such as total bandwidth, remaining bandwidth, shake and time delay of bearer network according to the needs of practical business.Specifically choose those reference records in probe messages, require to choose according to practical business, in probe messages the state of recording carrying net specifically be in the transmission course of probe messages with through the bearer network state recording in path in probe messages.
Below in the probe messages transmission course, specifically how the bearer network state recording with the path is explained in detail in probe messages:
If in the bearer network, between a BC and the 2nd BC not by any RD route, and direct communication, then the 2nd BC receives the message information that a BC sends, and with the bearer network state recording between a BC to the two BC in probe messages.
If in the bearer network, has only a RD between the one BC and the 2nd BC, then this RD directly with a BC to the relevant information records of the bearer network state of link section between this RD in probe messages, be forwarded to the 2nd BC again, the 2nd BC receives probe messages, and the bearer network state that is write down in the bearer network state of link section between RD to the two BC and the probe messages compared, if the bearer network state of link section is better than the bearer network state that probe messages writes down between RD to the two BC, then upgrade the bearer network state of probe messages record.
If in the bearer network, a BC and the 2nd BC are provided with plural RD, and then first receives the RD of probe messages, at first with a BC to the bearer network state recording of link section between this RD in probe messages, be forwarded to next RD then.Next RD receives probe messages, a last RD is compared to the bearer network state of link section between this RD and the bearer network state of probe messages record, if the bearer network state quality that the bearer network quality of link section is not better than in the probe messages to be write down then upgrades the bearer network state that probe messages writes down; Otherwise, directly transmit this probe messages.In like manner, follow-up RD and the 2nd BC receive probe messages, and relatively go up a RD to the bearer network state of link section between this RD or the 2nd BC and the bearer network state of probe messages record, upgrade the bearer network state that probe messages write down.
According to the bearer network state parameter that probe messages write down, its concrete update scheme is: the RD or the 2nd BC that receive probe messages, each parameter such as the remaining bandwidth that write down in the probe messages, total bandwidth, shake, time delay is compared to the relevant parameter of this RD or this BC link section with the last RD of probe messages process respectively, for the principle of this probe messages institute, upgrade each bearer network parameter that probe messages writes down according to the bearer network state that makes probe messages record respectively through the poorest bearer network state in path.Specific as follows:
For remaining bandwidth: if the remaining bandwidth of this link section less than the remaining bandwidth that is write down in the probe messages, then is updated to the remaining bandwidth in the probe messages remaining bandwidth of this link section;
For total bandwidth, if the total bandwidth of this link section less than the total bandwidth that is write down in the probe messages, then is updated to the total bandwidth that writes down in the probe messages total bandwidth of this link section.
For shake, if the jitter value of this link section greater than the jitter value that is write down in the probe messages, then is updated to the jitter value that writes down in the probe messages jitter value of this link section;
For time delay, if the time delay of this link section greater than the time delay that is write down in the probe messages, then is updated to the time delay that writes down in the probe messages time delay of this link section.
If the bearer network state parameter of detection information record also has other parameter, then the bearer network state parameter is compared with the relevant parameter of this link section respectively, relatively, more new principle and above-mentioned parameter corresponding method be in like manner for it.
According to above description, as can be seen, finally the probe messages of the 2nd BC write down probe messages through the poorest bearer network state in path.
By bearer network system schematic shown in Figure 1 as seen, each SC can be connected with at least one BC in bearer network, and can have a plurality of paths by different routes between two BC, have two different paths as shown in Figure 1 between BC1 and the BC2: path 1 and path 2.Therefore the probe messages that sends between the BC has write down the bearer network state in the path of its process respectively through different paths.Therefore be example with BC1 and BC2, BC1 sends probe messages to BC2, the probe messages that the received BC1 of BC2 is sent is two, improves the bearer network state information that probe messages has write down path 1, path 2 respectively; In like manner send probe messages for BC2 to BC1, BC1 in like manner can receive two probe messages of the bearer network state in record path 1 that BC2 sends, path 2.In like manner certainly in the bearer network each BC all can send probe messages mutually, between BC2 and BC3, between BC1 and the BC3,, obtain between each BC, the bearer network state in each path by sending probe messages between each BC mutually.
Step S202: second bearer controller uploads to the probe messages that is received to be attached thereto the service controller that connects, and described service controller carries out conversation management control according to described probe messages.
The 2nd BC uploads to the probe messages that is received to be attached thereto the SC that connects, and SC receives the probe messages report, so SC can obtain the bearer network state that connects each path between all BC and other BC that is attached thereto.The bearer network state information of the probe messages in each path that SC will receive record is stored according to the path, is every path allocation IP territory, makes each path corresponding one by one with each IP territory, make things convenient for information storage, search and renewal etc.
When SC receives new session access request, SC specifically is that needs are between those two BC according to this new session request, obtain this new session request between corresponding two BC might route the path (here with this new business may route the path become feasible path), and according to pairing each the IP territory of each feasible path, search the current bearer network state in each path of being stored, and, carry out corresponding session Access Control Policy according to lookup result.It is specific as follows: if the current bearer network state of all feasible paths all satisfies the requirement of this letter session, the path of then choosing bearer network state quality optimum wherein is as the new session routed path, SC accepts new session and inserts request, and this new session is routed to this optimal path; Do not insert request if the current bearer network state of all feasible paths does not all satisfy new session, then SC refuses the access of this new session.In choosing the optimal path process, choose according to following rule: satisfy in all feasible paths of new session request at all, relatively each bearer network parameter of each path according to comparative result, is obtained optimal path.In the trade-off process of each parameter comparative result, general with the remaining bandwidth parameter as primary parameter, the path of choosing the remaining bandwidth maximum is optimal path the most, if the remaining bandwidth in different paths is the same, then continue other bearer network parameters of reference path, as total bandwidth, time delay, jitter parameter, for the total bandwidth parameter, choose the bigger path of total bandwidth as preferred path, for jitter parameter, and delay parameter, it is less to choose jitter value, the less path of time delay value is as preferred path, yet what deserves to be explained is, generally speaking with remaining bandwidth as primary comparison other, but according to business to bandwidth, time delay, the requirement of shake, do not get rid of time delay, shake waits other parameters as primary comparison other, chooses the possibility of optimal path.
When in the bearer network during certain section link occurs fault, SC can be known this fault rapidly according to the bearer network state of the probe messages record that regularly reports, and partial session is removed in decision, makes rationally, conversation management control timely.
Further, service controller can also be according to actual needs, the bearer network state information of the probe messages record in each path that receives in storage a period of time, and each path bearer network state information of being stored added up, analyzes, obtain the prediction address of each path bearer network, and, carry out corresponding C AC strategy according to prediction address.If prediction address will show when certain path service quality of bearer network will descend, SC is according to this prediction notice, can be further before this path service quality descends, remove partial session in advance, perhaps with the path that other current bearer network states can allow new session to insert that is routed to of the partial session in this path, situation about descending takes place in all quality of services of certain path of further avoiding occurring bearer network.More effectively carry out the CAC strategy.Further improved user's use experience.
By the inventive method as can be seen, compared with prior art, the present invention not only can be when new session inserts request, judge more accurately and carry out the new session Access Control Policy, in the time of can also working as the bearer network link occurs fault, when causing the bearer network state to change, SC can be known this situation rapidly, in time carries out the corresponding conversation management control strategy of removing session or changing route.The quality of service of the session that effective guarantee has been set up.Improved user's use experience greatly.
Below, above-mentioned method is made further analyzing examples respectively with regard to concrete each path of bearer network:
By the IP bearer network system diagram of Fig. 1 as can be seen, the path between BC1 and the BC2 is: BC1-RD1-RD2-BC2 is called path 1 with this path.If send probe messages to BC2 by BC1, wherein process the path specifically: BC1 is to RD1, be called link section 11, RD1 is to RD2, be called link section 12, RD2 is called link section 13 to BC2, last received probe messages being uploaded to by BC2 is attached thereto the SC2 that connects, so the probe messages that receives of SC2 has write down the bearer network information of the link in path 1.
If according to service needed, the total bandwidth that only needs the recording carrying net in the probe messages, remaining bandwidth, propagation delay time, and jitter parameter, be illustrated in figure 3 as the transmission of probe messages in path 1 shown in Figure 1 so, the renewal process schematic diagram, as shown, the total bandwidth of the bearer network of link section 11 is 100Mb, remaining bandwidth is 80Mb, time delay is 100ms, be dithered as 20ms, at first BC1 sends probe messages, and probe messages arrives RD1 through link section 11, after RD1 receives probe messages so, the bearer network information of link section 11 is recorded in the probe messages bag, and the probe messages that will write down the bearer network situation of link section 11 then is transmitted to RD2 through link 12; The total bandwidth of link section 12 is 200Mb, and remaining bandwidth is 30Mb, and time delay is 50ms, is dithered as 30ms.The bearer network state that writes down in the RD2 comparison detection bag and the bearer network situation of link section 2, specifically be to compare total bandwidth respectively, the remaining bandwidth propagation delay time, and jitter parameter, if the total bandwidth that has write down is greater than the total bandwidth of link section 12, then with the total bandwidth value that is revised as link section 12 of the total bandwidth in the probe messages bag, if the remaining bandwidth that has write down is greater than the remaining bandwidth of link section 12, then the remaining bandwidth value in the detection packet is revised as the remaining bandwidth value of link section 12, if the propagation delay time that has write down is less than the propagation delay time of link section 12, then the propagation delay time value in the detection packet is revised as the propagation delay time value of link section 12, if the shake of having write down less than the shake of link section 12, then is revised as the jitter value in the detection packet jitter value of link section 12.According to top modification rule, conspicuous, after RD2 receives probe messages, RD2 with the bearer network status modifier that writes down in the probe messages is: total bandwidth 100Mb, remaining bandwidth 30Mb, propagation delay time 100ms, shake 30ms, and amended probe messages is transmitted to BC2 through link 13.BC2 receives probe messages, the bearer network state of link section 13 is: total bandwidth 80Mb, remaining bandwidth 40Mb, time delay 50ms, shake 20ms, the bearer network state of contrast probe messages record and the bearer network state of link section 13, in like manner, according to top modification rule, BC2 is total bandwidth 80Mb with the bearer network status modifier that detection packet write down, remaining bandwidth 30Mb, time delay 100ms, shake 30ms.BC2 is uploaded to amended probe messages and is attached thereto the SC2 that connects.The received probe messages of SC2 has write down the poorest bearer network state information of the bearer network state in the path 1 between BC1 and the BC2: the total bandwidth 80Mb of bearer network, remaining bandwidth 30Mb, time delay 100ms, shake 30ms.
If the bearer network state that is write down also comprises other reference variable, the renewal of in like manner making amendment is not given unnecessary details at this.The bearer network state that probe messages write down of last gained is a bearer network state the poorest in the path 1 in a word.
By the IP bearer network system diagram of Fig. 1 as can be seen, BC1 sends message to BC2, except above-mentioned path 1, also has another path: BC1-RD1-RD3-RD2-BC2, and this path is called path 2.The transmission course of probe messages in path 2 as shown in Figure 4, as shown, path 2 specifically is made of 4 link sections: BC1 is to RD1, and promptly link section 11, RD1 is called link section 22 to RD3, RD3 is called link section 23 to RD2, RD2 is to BC2, promptly link section 13.If the bearer network state of link section 22 is: 150Mb, remaining bandwidth are 40Mb, time delay 90ms, shake 10ms, the bearer network state of link section 23 is: total bandwidth 100Mb, remaining bandwidth are 50Mb, time delay 80ms, shake 20ms.So with path 1 in to the bearer network information processing of probe messages in like manner, the probe messages that is uploaded to SC2 by BC2 has write down between BC1 and the BC2 as can be known, the worst state of the bearer network in path 2, the bearer network state that is write down in the probe messages is: total bandwidth 100Mb, remaining bandwidth 40Mb, time delay 100ms, shake 20ms.
Usually, in the IP bearer network, BC fixes to the path between the BC, unless generation equipment or link failure, the change of route can take place, and can in considerable time, be maintained fixed after changing.Therefore we can be IP territory of the every path allocation in the bearer network, and distribute corresponding IP address respectively for each IP territory.Therefore SC can received information store according to the different different IP territories of correspondence, path, and the form of its storage can adopt as Fig. 5, form shown in Figure 6.
If SC2 receives session and inserts request, so BC2 is called source BC, BC1 is called purpose BC, if between BC1 and the BC2, the IP territory in path 1 is IP territory 1, and corresponding IP address is IP address 1, if the IP territory in the path 2 between BC1 and the BC2 is IP territory 2, corresponding IP address is IP address 2.When SC2 receives by BC2 when the calling of BC1 inserts, SC2 carries out routing according to the bearer network state information in each path of the detection information record of being stored, and promptly indication BC2 is adopting the IP address in which IP territory to communicate in giving the control command of BC.
If more than one of the BC that is connected with SC, bearer network system as shown in Figure 1, the BC that is connected with SC2 also is connected with BC3 except that BC2, and the path between BC1 and the BC3 has two, and article one is: BC1-RD1-RD2-RD3-BC3 is called path 3 with this path; Second is: BC1-RD1-RD3-BC3, this path is called path 4, and the IP territory of establishing path 3 correspondences is IP territories 3, establishing 4 pairing IP territories, path is IP territories 4.And 1, the 2 pairs of probe messages in path are transmitted, are handled in like manner between top BC1 and the BC2.SC2 regularly gets access between BC1 and the BC3 respectively, respectively via the probe messages in path 3,4, has write down the poorest bearer network information in path 3,4 in this message respectively.
In like manner, as shown in Figure 1, have two paths between BC3 that is connected with SC2 and the BC2 equally, article one is: BC3--RD3--RD2--BC2; Second is: BC3--RD3--RD1--RD2--BC2.If the corresponding IP territory in path 5 is IP territories 5, the IP territory of establishing path 6 correspondences is IP territories 6.In like manner, SC2 regularly gets access between BC2 and the BC3 respectively, respectively via the probe messages in path 5,6, has write down the poorest bearer network information in path 5,6 in this message respectively.
When SC receives new calling when inserting request, receive the service access request of BC2 as SC2 to BC1, SC2, according to the requirement (specifically be requirement according to parameter states such as bearer network bandwidth, time delay and shakes) of new business to bearer network, search the bearer network status data of the probe messages record of being stored, judge whether current bearer network state can hold the access of new business, if can, suitable path is selected in the access that then is new session, and, this communication service is routed in the respective paths goes according to the IP thresholding in selected path; If cannot, then refuse this new business and insert.
SC is for the bearer network state of the probe messages record in each path that regularly receives, can adopt the mode of each renewal, it specifically is IP territory for every path allocation one correspondence, when SC whenever receives probe messages, according to its IP territory, former recorded information is updated to current up-to-date bearer network state information, only stores current up-to-date probe messages, for the SC2 in the system shown in Figure 1 probe messages in each path of being received is carried out the storage format schematic diagram of each updated stored mode as Fig. 5; SC can also be according to service needed, to regularly to receive the carrying of probe messages record netted, adopt the mode of regularly upgrading, probe messages in storage a period of time, wherein the cycle of regularly upgrading requires to be provided with according to reality, Fig. 6 carries out the regularly storage format schematic diagram of updated stored mode for the SC2 in the system shown in Figure 1 to the probe messages in each path of being received, as shown, be IP territory equally for every path allocation one correspondence, it is corresponding same IP territory, the content of being stored has also been stored the bearer network state of other probe messages of accepting constantly records before except the bearer network state of current time.SC is according to the bearer network state information of a period of time of being stored, the analysis that further takes statistics, and obtain the report of bearer network status predication, and SC is according to prediction address, the variation of the state that the precognition bearer network will take place, and do corresponding preliminary treatment according to this state variation.Especially, this preliminary treatment can just be carried out professional control and management to associated session before fault takes place when network breaks down.
The inventive method is handled the following two kinds of situations that specifically comprise for bearer network faults:
First kind of situation: if certain section link portions is interrupted in the bearer network, when the bearer network available resources reduce, SC is according to the probe messages that reports, find that the session resource needed of having set up at present is not enough, SC can in time remove partial session, to satisfy the resource needs of residue session, guarantee to remain session and carry out smoothly.And can service quality is not affected because this part is interrupted because of all sessions.
Second kind of situation: if when bearer network section link interrupts fully, in existing bearer network, the change of route generally can take place automatically for this kind situation, to be routed to other link through the session of this section link and proceed communication, as establish BC2 between the BC1 through the communication of path 1 (BC2-RD2-RD1-BC1), wherein link RD2-Rd1 interrupts, under this kind situation, bearer network is routed to path 2 (BC2-RD2-RD3-RD1-BC1) with the service communication of former routed path 1, and can not cause the service disconnection in path 1.But this may cause the load in path 2 to increase the weight of, and specifically be because the service traffics of link RD2-RD3-RD1 increase, even may transship.Adopt the inventive method, because SC regularly receives the probe messages in each path, therefore SC can be known the bearer network state in each path rapidly, when the overweight or overload of link load takes place in the path, in time remove partial session, saving the smooth communication that remains session from damage, and can not interrupt, influence the communication quality of all sessions because of part of links.
In sum, among the present invention owing to adopted initiatively timed sending probe messages of BC, recording carrying net state in probe messages, make SC can in time grasp the last state of current bearer network, further, in transmission probe messages process, upgrade the bearer network state that is write down, make SC received probe messages write down through the poorest situation of path bearer network, therefore SC is according to this probe messages, bearer network is made corresponding conversation management control, can guarantee that every link in each path all satisfies professional needed communication quality requirement.
SC according to actual needs in addition, received bearer network information can be gathered, statistical analysis, obtain the report of bearer network status predication, and according to prediction address, before the bearer network quality descends, business is made CAC pretreatment operation such as corresponding shunting or dismounting, effectively guaranteed each the professional communication quality in the bearer network.
More than the conversation management control method of a kind of IP bearer network provided by the present invention is described in detail, used specific case herein principle of the present invention and execution mode are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. the conversation management control method of an IP bearer network may further comprise the steps:
A, first bearer controller send probe messages to second bearer controller; With described probe messages from described first bearer controller arrive for the first time another bearer network equipment the bearer network state recording of link section of process described probe messages;
B, second bearer controller upload to the probe messages that is received and are attached thereto the service controller that connects, and the bearer network state that described service controller carries according to described probe messages carries out conversation management control.
2. the conversation management control method of IP bearer network according to claim 1 is characterized in that: being sent as periodically described in the steps A sends.
3. the conversation management control method of IP bearer network according to claim 1 is characterized in that: routing device or described second bearer controller of described another bearer network equipment for being connected with first bearer controller.
4. the conversation management control method of IP bearer network according to claim 1 is characterized in that: further may further comprise the steps after the steps A:
A12, more described probe messages the bearer network state of bearer network link section of process and the bearer network state of described probe messages record, if the bearer network state of described link section is not better than the bearer network state of described probe messages record, the bearer network state information of then revising described probe messages and being write down.
5. the conversation management control method of IP bearer network according to claim 4 is characterized in that: described bearer network state comprises the remaining bandwidth state, and described modification may further comprise the steps:
The remaining bandwidth of the remaining bandwidth of the bearer network of A121, more described probe messages record and the bearer network of described link section, if the remaining bandwidth of the bearer network that is write down in the described probe messages greater than the remaining bandwidth of the bearer network of described link section, then is revised as the remaining bandwidth information in the message remaining bandwidth value of the bearer network of described link section.
6. the conversation management control method of IP bearer network according to claim 4 is characterized in that: described bearer network state further comprises the total bandwidth state, and described modification may further comprise the steps:
The total bandwidth of the total bandwidth of the bearer network of A122, more described probe messages record and the bearer network of described link section, if the total bandwidth of the bearer network of described probe messages record greater than the total bandwidth of the bearer network of described link section, then is revised as the total bandwidth value in the message total bandwidth value of the bearer network of described link section.
7. the conversation management control method of IP bearer network according to claim 4 is characterized in that: described bearer network state further comprises wobble information, and described modification may further comprise the steps:
The shake of the shake of the bearer network that is write down in A123, the more described probe messages and the bearer network of described link section, if the jitter value of the bearer network of described link section is greater than the jitter value of the bearer network that is write down in the described probe messages, then the jitter value of the bearer network that write down in the described probe messages is revised as the bearer network jitter value of described link section.
8. the conversation management control method of IP bearer network according to claim 4 is characterized in that: described bearer network state further comprises time delay information, and described modification may further comprise the steps:
The time delay information of the time delay of the bearer network that is write down in A124, the more described probe messages and the bearer network of described link section, if the time delay of the bearer network of described link section is greater than the time delay of the bearer network that writes down in the described probe messages, then the time delay information of the bearer network that write down in the described probe messages is revised as the bearer network time delay information of described link section.
9. according to the conversation management control method of one of them described IP bearer network of claim 1 to 8, it is characterized in that: described step B specifically may further comprise the steps:
B1, service controller receive and store described probe messages;
B2, according to the bearer network state of being stored that probe messages write down, carry out conversation management control.
10. the conversation management control method of IP bearer network according to claim 9 is characterized in that: the storage described in the step B1 specifically may further comprise the steps:
B11, be independently IP territory of every path allocation one;
B12, corresponding corresponding each the IP territory of the detection information that obtained is stored.
11. the conversation management control method of IP bearer network according to claim 10 is characterized in that: described step B1 further may further comprise the steps:
B13, service controller are according to the probe messages of being stored, and prediction bearer network state obtains prediction address, and according to described prediction address, carries out the conversation management control strategy.
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| CN101345665B (en) * | 2008-08-28 | 2011-08-24 | 华为技术有限公司 | Method and system for media surface controlling signaling surface |
| WO2011035473A1 (en) | 2009-09-24 | 2011-03-31 | 华为技术有限公司 | Method, equipment and system for offloading network traffic |
| CN104065522B (en) * | 2013-03-19 | 2017-12-12 | 中兴通讯股份有限公司 | A kind of method and device of detecting PTN link available bandwidths |
| CN103338483B (en) * | 2013-07-24 | 2016-08-10 | 成都西加云杉科技有限公司 | Data distribution method, data distribution equipment and heterogeneous network |
| EP3588840B1 (en) * | 2017-03-27 | 2021-03-03 | Huawei Technologies Co., Ltd. | Data transmission method, user equipment, and control plane node |
| CN109639802B (en) * | 2018-12-18 | 2021-11-02 | 杭州迪普科技股份有限公司 | Link statistics management method and device |
| CN115150305B (en) * | 2022-06-28 | 2023-04-25 | 中国联合网络通信集团有限公司 | Carrier network delay link determination system, method, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452347A (en) * | 2002-04-20 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Method for detecting medium gateway controller and medium between-gateways link state |
| CN1578234A (en) * | 2003-07-29 | 2005-02-09 | 华为技术有限公司 | Detecting method for Link routine state |
| CN1681254A (en) * | 2004-04-08 | 2005-10-12 | 华为技术有限公司 | Maintaining method of Ethernet link state |
| CN1713596A (en) * | 2004-06-15 | 2005-12-28 | 中兴通讯股份有限公司 | Link detection for realizing multi-link agreement |
-
2006
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1452347A (en) * | 2002-04-20 | 2003-10-29 | 深圳市中兴通讯股份有限公司 | Method for detecting medium gateway controller and medium between-gateways link state |
| CN1578234A (en) * | 2003-07-29 | 2005-02-09 | 华为技术有限公司 | Detecting method for Link routine state |
| CN1681254A (en) * | 2004-04-08 | 2005-10-12 | 华为技术有限公司 | Maintaining method of Ethernet link state |
| CN1713596A (en) * | 2004-06-15 | 2005-12-28 | 中兴通讯股份有限公司 | Link detection for realizing multi-link agreement |
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